From d03be26e37e943a1e7bae2ebc8378fccc496dc78 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 17 Jun 2002 01:48:31 +0000 Subject: [PATCH] 8bpp bugfixes (brightness, contrast ...) 4bpp Originally committed as revision 6454 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc --- postproc/yuv2rgb.c | 173 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 165 insertions(+), 8 deletions(-) diff --git a/postproc/yuv2rgb.c b/postproc/yuv2rgb.c index 07487027f6..ef653f8f8b 100644 --- a/postproc/yuv2rgb.c +++ b/postproc/yuv2rgb.c @@ -87,20 +87,42 @@ uint64_t __attribute__((aligned(8))) dither8[2]={ 0x0602060206020602LL, 0x0004000400040004LL,}; -uint8_t __attribute__((aligned(8))) dither32[4][8]={ +uint8_t __attribute__((aligned(8))) dither_4x4_32[4][8]={ { 0,16, 6,22, 0,16, 6,22}, {28, 8,24,14,28, 8,24,14}, { 4,20, 2,18, 4,20, 2,18}, {26,12,30,10,26,12,30,10}, }; -uint8_t __attribute__((aligned(8))) dither64[4][8]={ +uint8_t __attribute__((aligned(8))) dither_4x4_64[4][8]={ { 8,40, 4,36, 8,40, 4,36,}, {52,24,60,20,52,24,60,20,}, {00,32,12,44,00,32,12,44,}, {56,16,48,28,56,16,48,28,}, }; +uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={ +{ 0, 48, 12, 60, 3, 51, 15, 63, }, +{ 32, 16, 44, 28, 35, 19, 47, 31, }, +{ 8, 56, 4, 52, 11, 59, 7, 55, }, +{ 40, 24, 36, 20, 43, 27, 39, 23, }, +{ 2, 50, 14, 62, 1, 49, 13, 61, }, +{ 34, 18, 46, 30, 33, 17, 45, 29, }, +{ 10, 58, 6, 54, 9, 57, 5, 53, }, +{ 42, 26, 38, 22, 41, 25, 37, 21, }, +}; + +uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={ +{ 68, 36, 92, 60, 66, 34, 90, 58, }, +{ 20, 116, 12, 108, 18, 114, 10, 106, }, +{ 84, 52, 76, 44, 82, 50, 74, 42, }, +{ 0, 96, 24, 120, 6, 102, 30, 126, }, +{ 64, 32, 88, 56, 70, 38, 94, 62, }, +{ 16, 112, 8, 104, 22, 118, 14, 110, }, +{ 80, 48, 72, 40, 86, 54, 78, 46, }, +{ 4, 100, 28, 124, 2, 98, 26, 122, }, +}; + #undef HAVE_MMX #undef ARCH_X86 @@ -447,7 +469,6 @@ static void yuv2rgb_c_8 (uint8_t * py_1, uint8_t * py_2, } } -// This is exactly the same code as yuv2rgb_c_32 except for the types of // r, g, b, dst_1, dst_2 static void yuv2rgb_c_8_ordered_dither (uint8_t * py_1, uint8_t * py_2, uint8_t * pu, uint8_t * pv, @@ -462,8 +483,8 @@ static void yuv2rgb_c_8_ordered_dither (uint8_t * py_1, uint8_t * py_2, dst_2 = _dst_2; while (h_size--) { - uint8_t *d32= dither32[v_pos&3]; - uint8_t *d64= dither64[v_pos&3]; + uint8_t *d32= dither_4x4_32[v_pos&3]; + uint8_t *d64= dither_4x4_64[v_pos&3]; #define DST1a(i) \ Y = py_1[2*i]; \ @@ -514,6 +535,102 @@ static void yuv2rgb_c_8_ordered_dither (uint8_t * py_1, uint8_t * py_2, } } + +// This is exactly the same code as yuv2rgb_c_32 except for the types of +// r, g, b, dst_1, dst_2 +static void yuv2rgb_c_4 (uint8_t * py_1, uint8_t * py_2, + uint8_t * pu, uint8_t * pv, + void * _dst_1, void * _dst_2, int h_size, int v_pos) +{ + int U, V, Y, out; + uint8_t * r, * g, * b; + uint8_t * dst_1, * dst_2; + + h_size >>= 3; + dst_1 = _dst_1; + dst_2 = _dst_2; + + while (h_size--) { + RGB(0); + DST1(0); + DST2(0); + + RGB(1); + DST2(1); + DST1(1); + + RGB(2); + DST1(2); + DST2(2); + + RGB(3); + DST2(3); + DST1(3); + + pu += 4; + pv += 4; + py_1 += 8; + py_2 += 8; + dst_1 += 8; + dst_2 += 8; + } +} + +static void yuv2rgb_c_4_ordered_dither (uint8_t * py_1, uint8_t * py_2, + uint8_t * pu, uint8_t * pv, + void * _dst_1, void * _dst_2, int h_size, int v_pos) +{ + int U, V, Y; + uint8_t * r, * g, * b; + uint8_t * dst_1, * dst_2; + + h_size >>= 3; + dst_1 = _dst_1; + dst_2 = _dst_2; + + while (h_size--) { + uint8_t *d64= dither_8x8_64 [v_pos&7]; + uint8_t *d128=dither_8x8_128[v_pos&7]; + +#define DST1bpp4(i,o) \ + Y = py_1[2*i]; \ + dst_1[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \ + Y = py_1[2*i+1]; \ + dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]]; + +#define DST2bpp4(i,o) \ + Y = py_2[2*i]; \ + dst_2[2*i] = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \ + Y = py_2[2*i+1]; \ + dst_2[2*i+1] = r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]]; + + + RGB(0); + DST1bpp4(0,0); + DST2bpp4(0,0); + + RGB(1); + DST2bpp4(1,2); + DST1bpp4(1,2); + + RGB(2); + DST1bpp4(2,4); + DST2bpp4(2,4); + + RGB(3); + DST2bpp4(3,6); + DST1bpp4(3,6); + + pu += 4; + pv += 4; + py_1 += 8; + py_2 += 8; + dst_1 += 8; + dst_2 += 8; + } +} + + static int div_round (int dividend, int divisor) { if (dividend > 0) @@ -530,6 +647,8 @@ static void yuv2rgb_c_init (int bpp, int mode) uint16_t *table_16 = 0; uint8_t *table_8 = 0; uint8_t *table_332 = 0; + uint8_t *table_121 = 0; + uint8_t *table_1 = 0; int entry_size = 0; void *table_r = 0, *table_g = 0, *table_b = 0; @@ -623,7 +742,8 @@ static void yuv2rgb_c_init (int bpp, int mode) table_g = table_332 + 197 + 2*682; for (i = -197; i < 256+197; i++) { - int j = table_Y[i+384] >> 5; + int j = (table_Y[i+384] - 16) >> 5; + if(j<0) j=0; if (mode == MODE_RGB) j <<= 5; @@ -631,7 +751,8 @@ static void yuv2rgb_c_init (int bpp, int mode) ((uint8_t *)table_r)[i] = j; } for (i = -132; i < 256+132; i++) { - int j = table_Y[i+384] >> 5; + int j = (table_Y[i+384] - 16) >> 5; + if(j<0) j=0; if (mode == MODE_BGR) j <<= 1; @@ -639,7 +760,8 @@ static void yuv2rgb_c_init (int bpp, int mode) ((uint8_t *)table_g)[i] = j << 2; } for (i = -232; i < 256+232; i++) { - int j = table_Y[i+384] >> 6; + int j = (table_Y[i+384] - 32) >> 6; + if(j<0) j=0; if (mode == MODE_BGR) j <<= 6; @@ -647,6 +769,41 @@ static void yuv2rgb_c_init (int bpp, int mode) ((uint8_t *)table_b)[i] = j; } break; + case 4: + yuv2rgb_c_internal = yuv2rgb_c_4_ordered_dither; //yuv2rgb_c_4; + + table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t)); + + entry_size = sizeof (uint8_t); + table_r = table_121 + 197; + table_b = table_121 + 197 + 685; + table_g = table_121 + 197 + 2*682; + + for (i = -197; i < 256+197; i++) { + int j = (table_Y[i+384] - 64) >> 7; + if(j<0) j=0; + + if (mode == MODE_RGB) + j <<= 3; + + ((uint8_t *)table_r)[i] = j; + } + for (i = -132; i < 256+132; i++) { + int j = (table_Y[i+384] - 32) >> 6; + if(j<0) j=0; + + ((uint8_t *)table_g)[i] = j << 1; + } + for (i = -232; i < 256+232; i++) { + int j =(table_Y[i+384] - 64) >> 7; + if(j<0) j=0; + + if (mode == MODE_BGR) + j <<= 3; + + ((uint8_t *)table_b)[i] = j; + } + break; default: mp_msg(MSGT_SWS,MSGL_ERR,"%ibpp not supported by yuv2rgb\n", bpp);